A new month brings a new season of weather as we officially begin meteorological fall this weekend. But the rainy patterns from the summer will no doubt continue with the help of tropical moisture.
Deep tropical moisture will be pumped into the central and southern plains in the coming days. As that moisture surges north, it will wring out over parts of the plains in what appears to be a very active weather pattern next week.
The European model is already showing the 10 day forecast of 2-5 inches of rain in much of eastern Nebraska, Iowa, Minnesota, and parts of eastern South Dakota.
This pattern is not unusual for southeastern KELOLAND. Just two years ago in September of 2016, Sioux Falls had a 3-5 inch rain event that created flash flooding in a similar situation.
It’s important to note that much of western and northern SD has lesser chances of rain during this same time period, echoing some of the trends noted over the summer months in those areas as of late.